The QUIC protocol, designed to reduce latency and improve internet security, faces goodput performance challenges in high-speed networks, particularly with single-thread implementations. This poster extends an existing userspace Multipath QUIC (MPQUIC) implementation to enhance the goodput of a single connection by pinning different network path logics to different cores. Our solution, mcMPQUIC, achieves a goodput of up to 20 Gbps with ten paths/cores, surpassing the baseline MPQUIC performance by more than five times.